What is the equation of the line that passes through …

Mathematics Questions

Find the equation of the line. Use exact numbers. y=y=y, equals x+x+x, plus A coordinate plane. The x- and y-axes each scale by one. A graph of a line goes through the points zero, four and one, six.

Short Answer

To find the equation of the line passing through points (0,4) and (1,6), first calculate the slope (m) as 2 using the formula m = (y2 – y1) / (x2 – x1). Then, determine the y-intercept (b) as 4, leading to the equation of the line: y = 2x + 4.

Step-by-Step Solution

Step 1: Calculate the Slope

To determine the slope (m) of the line, use the slope formula: m = (y2 – y1) / (x2 – x1). Here, we can label the points as (x1, y1) = (0, 4) and (x2, y2) = (1, 6). Plugging in these values results in:

  • m = (6 – 4) / (1 – 0)
  • m = 2 / 1
  • m = 2

Step 2: Find the Y-Intercept

Next, we need to determine the y-intercept (b) of the line using the slope-intercept form, y = mx + b. We’ll substitute one of the points, preferably the one where x = 0, which is (0, 4). By putting x and y values into the equation, we solve for b:

  • 4 = 2(0) + b
  • 4 = 0 + b
  • b = 4

Step 3: Formulate the Equation

With the slope (m) and the y-intercept (b) calculated, you can now write the equation of the line. The equation takes the form y = mx + b, where you substitute the values you found:

  • y = 2x + 4

This gives you the complete equation of the line that goes through the points (0, 4) and (1, 6).

Related Concepts

Slope

The measure of the steepness or incline of a line, calculated using the formula m = (y2 – y1) / (x2 – x1)

Y-Intercept

The value of y when x is zero; it represents the point where the line crosses the y-axis in the slope-intercept form y = mx + b

Slope-Intercept Form

A linear equation format represented as y = mx + b, where m is the slope and b is the y-intercept.

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